black berry won't available in the u.s. until march but there are a number of unlocked z 10s for sale with one attracting kids of $1700. unlocked phone expected to cost $600 when it goes on sale in the united states. the phone came out in the uk yesterday. more best buy stores are shutting down this, time in canada. best buy shutting down 15 store stores and estimated 900 workers will lose their jobs. best buy hopes to open more small stores in canada part of the strat zwroi slim down its retail operations. the retailer shut 53 u.s. stores in the last year. in san francisco, i'm emily chang, carolyn, dan, back to you. go, niner autos thank you. >> coast guard, national parks and spca are joining together to warn dog owners about dangers of northern california beaches. since november there have been five deaths on beaches. many times, so called sneaker waves rise up and sweep pets out to sea. the danger is magnified when owners jump in, after them. >> you cannot warn you enough to resist the urge to go into the surf after yo